diff --git a/zipline/gens/tradesimulation.py b/zipline/gens/tradesimulation.py
index 6f3323bd..5e56b4f0 100644
--- a/zipline/gens/tradesimulation.py
+++ b/zipline/gens/tradesimulation.py
@@ -87,7 +87,7 @@ class TradeSimulationClient(object):
             self.sids
         )
         with_portfolio = perf_tracker.transform(with_filled_orders)
-
+        
         # Pass the messages from perf along with the trading client's
         # state into the algorithm for simulation. We provide the
         # trading client so that the algorithm can place new orders